Unloading boom for ships and turntable therefor



Nov. 26, 1929. J. R. SENSIBAR 1,737,342

UNLOADING BOOM FOR SHIPS AND TURNTABLE THEREFOR Filed July 22. 1927 2 Sheets-Sheet 1 Nov. 26, 1929. J. R. SENSIBAR UNLOADING BOOK FOR SHIPS AND TURNTABLE THEREFOR Filed July 22. 1927 2 Sheets-Sheet 2 MN m\ NW 1 m N. d

woooo o oooo o O n\ 0 llllII IIIIIIIIIIIIIIIIIIIIIII IIIII !Illlll'illlllllllllllll a: o o 0 l a o W Patented Nov. 26, 1929 UNITE STA JACOB R. SENSIBAR, OF CHICAGO, ILLINOIS Application filed July 22,

This invention relates to unloading booms for ships and turntable therefor.

An object of the invention is to provide an unloading boom for ships which carries an endless belt conveyor in which the vertical space occupied by the boom and support is reduced to a minimum.

This, and other objects, as will hereinafter appear, are accomplished by this invention which is fully described in the following specification and shown in the accompanying drawings, in which- Figure 1 is a partial side elevation of the fore end of a boat shown partly in section; and Fig. 2 is a partial side elevation and longitudinal vertical section of the pivot and support of the inner end of the boom.

The embodiment illustrated comprises a ship having a hull A on which is mounted a boom B which is supported at its inner end upon a turntable C, the outer end of the boom being carried by means of a support D and rope E which is wound upon a hoisting drum F. The boom B carries a belt conveyor G which has a separate drive on the tail end, as will hereinafter be described, and is fed by means of a suitable chute H from a hopper I to which the belt conveyor J delivers. This conveyor extends 3o forwardly into the hold of the vessel and receives material from the longitudinalvbelt conveyor K which delivers by means of a chute L. The conveyor J is driven by means of a motor M, through a suitable train of reduction gears, motor and gearing being located in a separate room.

It is of prime importance that the support D be made as low as possible both for the sake of keeping down the total height of the vessel so that it can pass under low bridges and the like and, also, because any unnecessary weight in the support D renders the vessel unsteady in a rough sea.

The arrangement of the conveyor B with its turntable C, as will hereinafter appear, permits the hopper I to be placed very low. At the same time, the shifting of the driving motor M and its reduction gears to the tail end of the conveyor J further reduces the total height required at the end of the con- 1927. Serial No. 207,659.

veyor J with the result that it is possible to use the very much lower support D than engineers in general have heretofore considered possible. i 7

Moreover, placing the motor M and its attendantgearing in a separate room enables the motor to be properly cooled, keeps it out of the dust which is usually present at the head end of the conveyor J during the unloading operation, and places it where itis alsomore accessible for inspection and repair.

Referring now to Figure 2, the belt conveyor G has a tail pulley 10 which is mounted on the shaft 11 which carries a gear 12 which meshes with a pinion 13 on the shaft 14; This shaft carries a gear 15 which meshes with a pinion 16 on the-shaft'of the motor 17'. The shafts 11 and 14 are mounted in suitable bearings which, togetherwith the motor 17, are bolted on the'extension B of the boom B." This-boomis mounted at the inner end on trunnions18 in which are journalled hori- The upper strand of the conveyor belt G j is depressed by means-of an idler 25 which is ,carried by a shaft26 suit'ablyljournalled on theboom B so as to further reduce.thetotal height required by the hopper I. The chute H is made round at the top to fit the rounded lower end of the hopper I and is carried by means of a support 27 which is carried by the table 20, the aXis of which is coincident with the hopper bottom I. V

The inner end of the boom is relieved on its underside so as to permit the outer end of the boom to be raised.

Thus it will be seen that this arrangement of parts, particularly the method of mount ing the boom and turntable on the deck of the boat, permits the chute I to be brought very close to the deck so that the head pulley J of the conveyor J is brought very low,

thereby permitting the height of the boom support D to be reduced very materially. This is further enhanced, as has been previously described, by locating the drive M for. the conveyor J to the forward or tail end of this conveyor. 7 1

While I have shown and described but a single embodiment of this'invention, it is to be understood-that it-is capableof many modi- 10 fications. Changes, therefore, in the construction and arrangement may. be I made which do not depart from the sfii'rit and scope of the invention as disclosed; in the appended. claims in which it is my intention to claim all novelty inherent in the invention as broad ly as possible in view of the prior art.

lt is tobe partic'ularl 'not'ed that the 'extelfs'id'n B of the-boom isb'ent' upwardly; and that the' mbtofli and gearin -which op:

30 erate the conveyor G are mounted bumper this extension The extension"- being bent upwardly permits the forward end: of the boom B to be *elevatd a'ig'fea't; distance be forethe extension B='=""enga e= the deck of th ship. 1" F a I claim: a v

1. unloading mechanism for ships and the like; a turn table; a boom carried by said turntable and sebu'redtherto' by a horizontal pivot and a rearward'lyirrejtctingeitnsion on "sa'id *boom'," said *extension bei'n inclined' upwardly- "7"" *2? *In unloading mechanism for ships and the -1ike;- a'=mmetablefiwboom "car he'd by said table andsecured theretbby a horizontal pi'vbt=';'and a rearwardly' pr'ojectingextension on said boom ezittending beyondtlie periphery of the-turn table andirfclinedi n'pw ardly'. r 1 lnnnloading mechanism fof'sliip's' and 40 the like; a 'turn table fa boomearried by said table and secured thereto "by i a "horizontal pivot; a'belbconveyor on said boom"; a" rear wafdly project'imgf u'pwindly"-i ndlin'ed exten sion -on said'f-boom; aiid driving mechanism for the' conveyor carried bnsaid extensioni 4. Mechanism as 'clalimedidn*claim 3-in which the boom extension projects beyohdi'tlie p'riphry'ofthe'turn"tablet?" :"Tnites'timony whereof""'-Ii have hereunto 59 set ifiyhzmdhrid seal this 15th"day ofqJ uiyi' 

